\section{Dataset}
	The dataset provided by teacher comprised of 102 speaker, in which 60 are
	females and the rest are males, with three different speaking style: Spontaneous,
	Reading and Whisper. A statistic is as follows:
	\begin{table}[!ht]
		\centering
		\begin{tabular}{|c|c|c|c|}
			\hline
			& Spontaneous & Reading & Whisper \\\hline
			Average Duration & 202s & 205s & 221s \\\hline
			Female Average Duration & 205s & 202s & 217s \\\hline
			Male Average Duration & 200s & 203s & 223s \\\hline
		\end{tabular}
	\end{table}
